mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
16f859dafd
This makes life easier when calling e.g. `saul_reg_write()` with data stored in flash. As now the signatures for reading and writing differ (in that `const` qualifier only), `saul_notsup()` is split into `saul_write_notsup()` and `saul_read_notsup()`. However, one is implemented as a symbol alias of the other, so that ROM consumption remains unchanged.
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2017 HAW Hamburg
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup drivers_hts221
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief HTS221 adaption to the RIOT SAUL interface
|
|
*
|
|
* @author Sebastian Meiling <s@mlng.net>
|
|
*
|
|
* @}
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "saul.h"
|
|
#include "hts221.h"
|
|
|
|
static int read_temp(const void *dev, phydat_t *res)
|
|
{
|
|
if (hts221_read_temperature((const hts221_t *)dev, &res->val[0]) != HTS221_OK) {
|
|
return -ECANCELED;
|
|
}
|
|
res->unit = UNIT_TEMP_C;
|
|
res->scale = -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int read_hum(const void *dev, phydat_t *res)
|
|
{
|
|
if (hts221_read_humidity((const hts221_t *)dev, (uint16_t *)&res->val[0]) != HTS221_OK) {
|
|
return -ECANCELED;
|
|
}
|
|
res->unit = UNIT_PERCENT;
|
|
res->scale = -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
const saul_driver_t hts221_saul_temp_driver = {
|
|
.read = read_temp,
|
|
.write = saul_write_notsup,
|
|
.type = SAUL_SENSE_TEMP,
|
|
};
|
|
|
|
const saul_driver_t hts221_saul_hum_driver = {
|
|
.read = read_hum,
|
|
.write = saul_write_notsup,
|
|
.type = SAUL_SENSE_HUM,
|
|
};
|